Tractor-wheel.



J. M. KROYER.

TRACIOR WHEEL. APPLICATION FILED MAR. 31.

Rimmed flat, 29, 1918.

2 SHEETSSHEET I.

JOHN M. KROYER, or STOCKTON, cALIro "E; r p.

ltNIA, ASSIGNQR TO SAM-SON SIEVE-GRIP TBACTQR-WHEEL.

Application-filed March 31,

To aZZ whom it may concern:

Be it known that JOHNl-fvll. Knornn, a

,citizen of the United States, and 'a resident of Slockton, county of San Joaquin State of Cz'ilifornia; have invented certain new and useful li'nproveinents in Tractor-Wheels, of which the following is a specification;

This invention relates to improvements in wheels particularly designed for use as the propelling andother 'wheels for tractors.

= One-of the'objects of my-inventjion is to produce a wheel which is comparatively light and inexpensive to manufacture inasmuch as .is'integral in structure, and'thereforerequires no assembling of parts, thereby decreasing the cost of labor and material.

Another ohject is to so'constructa tractor wheela's to-render unnecessary the use of precautions against mirin'g and slipping.

Another object is to so construct and arrange the angle. grips as to render sure the support for the tractor wherever it may be used." Another object is to so construct and arrange the angle grips on'the periphery of the wheel as to not only prevent the packing of the soil, but on the contrary to loosen and stir the surface of the soil by the action of the grips, and also to effectively crush or hreak clo'ds.

f: Another object of my-invention is to so construct the wheel as to render 1t suitable for machines OfVilllOllS s1zes and weights.

Another object is to provide in combination with a skeleton tractor wheel a road band for use when running the machine over asphalt, macadam orother roads, theband being so constructed-as to be easily removed from or attached to the Wheel. Another object is to provide a center drive for the tractorwheel. Other objects Will appear from the following description and claims.

' Referring to the' drawings in which the same reference character indicates the same part in the several views: I

Figure his a perspective View of one embodiment of my improved tractor Wheel.

F 2 is a plan view of the periphery of the wheel, broken away showing the cutter rings and angle grips.

Fig. 3 is a section on line 3-3 of l 1g. .2.

I Specification of Letters Patent.

' Pawne as, 1918. 191 7. seri 1nd. 1 5s,s50.

1 Fig. 4: is aperspective'of amodified constructionjwof my im'proi'ed tractor Wheel showing the roadband in place.

y .7 1* 1g. 1S a horizontal section on line 55 or Fig. 4.-

In the drawings the wheel is of metal preferably cast in a single structure. The casting has a skeleton formation, and it consists essentially of a hub 10, spokes ll, cutter ring 12 directly secured to the ter ring. 13 of the same diameter asthe cutter ring l2 and secured thereto by means of angle grips let and 15, the inner end of said angle grips being secured alternately to a central ring 16, which central ring is of slightly less diameter than that of the cutter r-ings heretofore referred to.

In the construction shown [in Fig. l, the

spokes, a cutdiameter of a circle drawn from the center of the wheel with the inner central corner of the upright flange of the angle grips as a radius, is substantially the same diameter asthe periphery of the side cutter rings. The outer corners of the upright flanges of the angle grips extend a short distance above the peripheries of the cutter rings.

Each of the angle grips is substantially L-shaped, the ends of each alternate grip extending from and at an angle to the cutter rings, the other ends Of'the angle grips alternately meeting with and'being secured to the central ring also at an angle thereto shown.

In order to prevent the packing of dirt and material from the soil over which the tractor is moved. the cutting rings 12 and 13, the peripheries of each of which are formed'with a suitable cutting edge atlfl and 13, are cut away respectively at the points 18 and 19 adjacent-the upright flanges of the angle gripsso as to allow for the free movement of the dirt longitudinallypast each grip as the forwarderfree end of the grip impinges upon the soil and the Lwheel is turned to carry th'etractor andflpulliits load. l i

A circular rack JO-formed 'withiteeth '21 on its inner surface is s'ecui'ed by bolts 22 providing'a true center drive for .the tracto the central ringlG, for the purpose of,

by a pinion secured to a shaft whichis' turnedby the engine-of the tractor.

Figs. 4 and 5 Show the removable road band 30,.which may be secured to the tractor wheel in any suitable manner, preferably by bolts 31 theheads of which are substantially flush. with the surface of the road band, and the ends are secured inany suitable mannerby nuts 32 to any suitablepart of the wheel preferably the horizontal fl'angcs 33 of the angle gri is, as shown.

As shown in Figs. 4 and 5 a wheel'may be constructed in which the upright. flanges 34: of the angle grips will extend a substantial distance above the cutter rings. .By"substantial I mean that the flange extends above the peripheijv of the cutter rings a distance two-thirds or three quarters of its height. This construction is especially use ful when the machine is to operate on loose sandy soil. i

l-ly means of the above described construction, I have found that tractor wheels do not pack the soil, but. on the contrary stir up the surface of the soil, thereby rendering assistance toward preparing the soil for planting or seeding. i

Tractor wheels constructed in accordance with my invention render equally good and eflicient traction when they are used over or upon either soft soil format-ion,sandy soil recently plowed or cultivated orchards or fields. They are also very useful as clod Crushers or clod breakers, and therefore. they are useful in pulverizing the more or less solid and extended clods which are often formed by the plow and left upon a field ailter plowing. y

I have found that this clod crushing much more effectively accomplished by the use of my invention, than by theordinary implements heretofore in use for that purpose. f

lVhile, of course, dimensions in inches are not the essence of my invention, yet to illustrate the relative dimensions and diameters, the following figures are given: In a wheel in which the outer peripheries of the cutter. lines are in circles having diameters of ll) inches, and the outer periphery of the center ring is in a circle having a diameter of 39 inches, the inner free corners of the upright flanges lie in a circle having a diameter of 40 inches, and theouter free corners of the upright flanges of the angle grips on each side of the wheel lie in circles having diameters of 41 inches.

My invention not limited to the driving wheels of the tractor. but is also used in the t ti of the front or guiding Wheels, and therefore the construction illustrated and described is the same for the front or 1 another cutter ring at the opposite side of Lassa-t5 it is rat the driv except; oi? course, that. the circu in not attached to, the cev ring on a nemor guiding wheel. l i I It is to be understood thatthe dra'vand the above descriptirm'me merely i trative and that the. invention is not to he ir limited in. any respect except as defined in the subjoined clai'znsf I Having now described my invention, what I claim. as new and desiri to secure by. ters Patent is: l 5

1. A tractor Wheel having; a hub,

integrally formed with the hub atone s,

or the wheel, a cutter ring in the plane of and integrally formed with thespoltes. and

' guidinvwheels 1 1- we Il rel.

the circunnf'erence oi the Wl'lQ/iBl integrally formed with the first cutter ring but otherwise disconnected from the spokes.

25A. tractor Wheel hating a hub, spokes integrally formed with the hub at one side 35 or the Wheel; a-cutter ring in the plane of and integrally formed with the spok s,

' second c liter ring at the opposite '}l circumference of the Wheel and oblitpiely arranged grips formed integrally with the cut- I f ter rings. i

A tractor wheel having a hub spo integrally formed with the hub at or i, of the Wheel, a cutter ring; in the plane or and integrally formed with the spokes a second cutter ring at the opposite side of the circumference of the Wheel, an intermediate ri 11g, and a series oi. grips extending obliouely from the cutter rings and formed integrally :with the cutter rings and intermediaterind.

H 4:. A tractor wheel compri ing cutter rings at opposite'sides thereof, a ringintermediate the cutter rings, and two seri s of gripe one series of said grips extending cbliqueiy in one direction from one cutter ring to the in termediate ring, and the other series of grips extending obliquely in the opposite d rection from the other cutter ring to said intermediate ring, sai l rings and grips being formed integral with each other.

'5. In. a, skeleton tractor Wheel, a hub, cutter rings integrally secured to the hub. a cen-. ter ring, and substantially trshaped angle grips, the horizontal flange of each angle grip being secured to a, cutter ring and to thecenter ring, and the upright flange of each angle grip being secured to a cutter T1110". i

6. In a tractor wheel, cutter rings. a rice disposed midway between the cut e" and substantially lit-shaped an e e lpS alternately projecting inwardly from each cutterring to the center ring and disposed at an oblique an le to each ofxaid rings.

'7. A tractor wheel provided with rings at each edge of the circumference ring and a. series of parallel 'ps J extending obliquely, from one cutter lng laliidradikefseries'of parallel grips ex-- obliquely from the' other cutter ring, gri

terminating serially at the intermediate ring. j 8; A tractor'wheel comprising cutter rings on each edge of the clrcum-ference thereof,

a ring. intermediate the cutter rings, 3 and grips formed integrally with the rings eX- tending from each cutter ring to the intermediate ring, the' outer edges of the grips at the intermediate ring being of less radial height than the cutter rings and inclined until they project radially beyond the cutter rings. A

9. A tractor Wheel comprising cutter rings on each'edge of the circumference thereof, a ring intermediate the cutterrings, and grips formed integrally with the rings extending obliquely from each cutter ring to the intermediate ring, the outer edges of the grips at the intermediate ring being of less radial height than the cutterrings and inclined until they project radially beyond the cutter rings.

10. A skeleton tractor Wheel consisting of ahub, spokes, cutter rings, a ring midway between the cutter ringsand angle grips in-' tegrally connected thereto and an internal gear ring or clrcular rack reinovably secured to said center ring. 7

11. A tractor Wheel provided With side cutter rings, a ring substantially midway be- I 7 fj'thetvvo series being arrang'cdlinjf ggere'dfrelation with each other andil tween the cutter rings, a series of grips connecting the intermediate ring with each cutter ring, and a band extending around the wheel; removably secured; to and covering saidi grips. y v

A traetorwheel provided With side rings, a ring substantially midway between the; side rings, grips connecting the antermediate-ring with each 1 side to provide-outer edges and base flanges, and

afbandcoveringthe outer edges of the grips and detachably secured to the base flanges of the latteln ate ring and having their outer ends adjacent to the openings inthe cutter rings.

Signed at the borough of Manhattan, city and State of New York, this 15th day of March, 1917.

JOHN M. KROYER.

In presence of ISABEL R. RICHARDS, ZITA M. GRAHAM.

ring ai'id formed ran gen 

